Home / 2,669.20-3,681.12-1,619.44

Finding the Fourth Proportional to 2,669.20, 3,681.12 and 1,619.44

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Solution

The fourth proportional to 2,669.20, 3,681.12 and 1,619.44 is: 2,233.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.20 : 3,681.12 = 1,619.44 : x
  2. Step 2: Convert to fraction form
    2,669.20/3,681.12 = 1,619.44/x
  3. Step 3: Cross multiply
    2,669.20x = 3,681.12 × 1,619.44
  4. Step 4: Simplify right side
    2,669.20x = 5,961,352.97
  5. Step 5: Solve for x
    x = 5,961,352.97/2,669.20
  6. Step 6: Final answer
    x = 2,233.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.